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Sierra Wireless AirVantage

Plan Patch8.4ICS-CERT ICSA-23-131-07May 10, 2023
Attack VectorLocal
Auth RequiredNone
ComplexityLow
User InteractionNone needed
Summary

Sierra Wireless AirVantage devices are affected by vulnerabilities (CWE-352 Cross-Site Request Forgery, CWE-798 Use of Hard-Coded Credentials) that could allow local attackers to execute arbitrary code or gain unauthorized access. The AirVantage Warranty Checker previously returned sensitive device identifiers (IMEI, Serial Number) that could be leveraged for enrollment bypass or unauthorized device activation. Affected products include 4K QUAD (versions 4.5.181 and 4.5.196), MINI (2.6.2), A300 EYES (3.4), and STUDIO R3 (3.6.4). Sierra Wireless has updated the Warranty Checker to stop disclosing unnecessary device identifiers but has not released firmware patches for the underlying vulnerabilities. The recommended mitigations are to disable the AirVantage Management Service if remote management is not needed, or to register devices on the platform and implement network isolation.

What this means
What could happen
An attacker with local access to an AirVantage device could execute arbitrary code or gain unauthorized access, potentially allowing them to alter device configuration, intercept communications, or disable remote management protections. Additionally, device enrollment information (IMEI and serial numbers) may be exposed through the warranty lookup service, enabling targeted attacks.
Who's at risk
Water authorities and utilities using Sierra Wireless AirVantage remote management devices (4K QUAD, MINI, A300 EYES, STUDIO R3 models) should evaluate whether remote management is required. Organizations relying on these devices for SCADA communications, telemetry, or remote operational access face the highest risk if the devices are enrolled in AirVantage and reachable from untrusted networks.
How it could be exploited
An attacker with physical or local network access to an AirVantage device can exploit the vulnerability to achieve remote code execution or unauthorized access. The warranty checker service previously disclosed device identifiers (IMEI, serial number) that could enable enrollment bypass or unauthorized device activation on the AirVantage management platform if the AirVantage Management Service is enabled.
Prerequisites
  • Local network access to the device or warranty checker service
  • No authentication required to trigger the vulnerability
  • AirVantage Management Service must be enabled on the device for full impact (enrollment/activation attacks)
Local access required (limits remote risk but increases insider threat)No authentication requiredLow complexity exploitationNo patch available for any affected productInformation disclosure (device identifiers)Potential code execution
Exploitability
Low exploit probability (EPSS 0.1%)
Affected products (4)
4 EOL
ProductAffected VersionsFix Status
4K QUAD: 4.5.181 | 4.5.1964.5.181 | 4.5.196No fix (EOL)
MINI:2.6.2No fix (EOL)
A300 EYES:3.4No fix (EOL)
STUDIO R3:3.6.4No fix (EOL)
Remediation & Mitigation
0/4
Do now
0/2
WORKAROUNDDisable the AirVantage Management Service on devices if remote management via AirVantage platform is not required
HARDENINGIsolate AirVantage devices and management traffic behind firewalls and network segmentation; do not expose them to the Internet
Schedule — requires maintenance window
0/2

Patching may require device reboot — plan for process interruption

HARDENINGRegister devices on the AirVantage platform to enable legitimate remote management and prevent unauthorized device activation
HARDENINGRestrict local network access to AirVantage devices to authorized users and systems only
View full CISA ICS-CERT advisory
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